102     const size_t _word_size;  member
110       _word_size(word_size)  in Node()
116         _word_size >= sizeof(Node) &&  in valid()
117         _word_size < chunklevel::MAX_CHUNK_WORD_SIZE;  in valid()
144     assert(head->_word_size == n->_word_size, "sanity");  in add_to_list()
165       assert(c->_word_size < p->_word_size, "sanity");  in set_left_child()
174       assert(c->_word_size > p->_word_size, "sanity");  in set_right_child()
227       if (n->_word_size == insertion_point->_word_size) {  in insert()
230       } else if (n->_word_size > insertion_point->_word_size) {  in insert()
254       if (n->_word_size >= s) {  in find_closest_fit()
256         if (n->_word_size == s) {  in find_closest_fit()
302       assert(succ->_word_size > n->_word_size, "sanity");  in remove_node_from_tree()
371       assert(n->_word_size >= word_size, "sanity");  in remove_block()
384       *p_real_word_size = n->_word_size;  in remove_block()
386       _counter.sub(n->_word_size);  in remove_block()
388       DEBUG_ONLY(zap_range(p, n->_word_size));  in remove_block()